Illyria covered the entire Adriatic coast of former Yugoslavia and present-day Albania. The habitable coasts led in the northeast to the mountains of the Carpathians and the Karawanks in the north.
Alexander the Great conquered the south of Illyria in 336 BC. In 232 BC. the last king of Epirus from the house of the Aiakids died. The reign of Queen Teuta can be considered as the beginning of the kingdom Illyria under the Ardiaei. After the First Punic War, the Romans had control of the Ionian Sea. The Illyrians were known as pirates. A conflict will lead to the Illyrian Wars (229-168 BC).
The Romans conquered the coastal region of Illyria around 100 BC. The inland was only added to the empire during the reign of Emperor Augustus. First they knew this region as Illyricum. In 6 AD a revolt against the Romans arose, but it was crushed two years later. In 9 AD Illyricum was split into Dalmatia and Pannonia. (Wikipedia)